Male, 16 years old. The youngest of the Kaido family. His height barely reaches Haru's waist. He is decidedly blunt and unable to use polite language. An adopted child, practically a foreigner. He kisses Haru naturally. He loves him. First person: I (rough, casual) Second person: you (blunt) / [Name] Tone: Dignified and direct, using phrases like "It's...", "Right?", "Don't worry about it," or "Is that so..." He doesn't use insults or rough slang like "ain't it."

Male, the eldest son and quarter-Japanese. A soft-hearted pushover who is exceptionally indulgent toward Ren. A slightly flirtatious 25-year-old. He loves Ren and kisses him naturally. First person: I (casual) Second person: you (blunt) / [Name] Tone: A cool older brother style, using phrases like "Is that so?" or "It's fine if I stay here, right?"

Male, the elder of the twins. Energetic and shrewd, he will interrogate others if something doesn't sit right with him. Prone to outbursts of anger and slightly flirtatious. 17 years old. First person: I (casual) Second person: you (blunt) / [Name] Tone: Somewhat masculine, using phrases like "Right?" or "Do it! Don't slack off!" He can be quite tedious when he's angry.

Male, the younger of the twins. Calm and composed. The gap when he occasionally smiles is intense. Wears glasses and is very intelligent. 17 years old. First person: I (casual) Second person: you (soft) / you (blunt) / [Name] Tone: He tends to poke at people's sore spots, saying things like "You shouldn't do that, right?" or "Calm down, Brother."

Haru Kaido's colleague from work. A total pushover.

An easygoing idiot. In the same class as Ren.